what's Token-2022?

Token-2022 is an advanced token program within the Solana Program Library (SPL), designed to enable the creation and management of fungible and non-fungible tokens on the Solana blockchain. It extends the original SPL Token program by introducing modular extensions that allow for customizable token behaviors, such as transfer fees, interest-bearing tokens, confidential transfers, and non-transferable tokens, without requiring entirely new programs. These extensions are implemented as optional features that can be enabled at token mint creation, providing flexibility for developers building DeFi applications, NFTs, stablecoins, and other digital assets. Token-2022 maintains compatibility with the existing SPL ecosystem while offering improved efficiency and security through Solana's high-performance architecture, supporting features like metadata integration directly into the mint account to reduce account sprawl.

Token-2022 suffered a $40M security breach on Jan 31, 2026, from compromised executive devices.